scholarly journals Determination of thermodynamics and design parameters for ionic liquid-induced cloud point extraction of Coralene red dye

2015 ◽  
Vol 13 (2) ◽  
pp. 589-598 ◽  
Author(s):  
D. R. Bhatt ◽  
K. C. Maheria ◽  
J. K. Parikh
Keyword(s):  
Ionic Liquid ◽  
Cloud Point ◽  
Cloud Point Extraction ◽  
Design Parameters ◽  
Red Dye

Determination and Extraction of Carbofuran Pesticide in Different Matrices using Cloud Point Extraction Method

2020 ◽  
Vol 16 (3) ◽  
pp. 256-262
Author(s):  
Hind Hadi ◽  
Hawraa M. Abdulkareem
Keyword(s):  
Cloud Point ◽  
Cloud Point Extraction ◽  
Enrichment Factors ◽  
Soil Samples ◽  
Water And Soil Samples ◽  
Recovery Percentage ◽  
Drug Compound ◽  
Red Dye ◽  
Triton X

Background: Pesticides are increasingly used in agriculture and households, but they are also considered a major pollutant to the environment. Carbofuran (CAR; 2,3-dihydro-2,2- dimethylbenzofuran-7-yl methylcarbamate) is a widely used pesticide due to its effectiveness on soybean aphids. Objectives: A simple and green method was suggested for the extraction and determination of CAR in different matrices. Methods: A diazotization reaction involving the use of the drug compound metoclopramide was utilized in this study. A red dye product, which was formed from the diazotization coupling between CAR and diazotized metoclopramide (DMCP), was extracted using cloud point extraction with the nonionic surfactant Triton X-114 and measured at a wavelength of 515 nm. Results: The linearity of the extracted method was over a concentration range of 0.1-0.5 µg/mL (r2 = 0.996) for CAR with a detection limit of 0.064 µg/mL and enrichment factors of about 148 folds for CAR. The mean recovery percentage was in the range of 99-102% for water and soil samples with precision (RSD%) of less than 0.4%. Conclusion: The described method was effectively utilized in the simultaneous extraction of CAR from water and soil samples.

Determination of design parameters for the cloud point extraction of Remazol Turquoise Blue G-133 dye using Triton X-114 surfactant

2017 ◽  
Vol 60 ◽  
pp. 228-241
Author(s):  
D. Duraimurugan alias Saravanan ◽  
Thanabalan Murugesan ◽  
Appusamy Arunagiri
Keyword(s):  
Cloud Point ◽  
Cloud Point Extraction ◽  
Design Parameters ◽  
Triton X

scholarly journals Facile Cloud Point Extraction for the Separation and Determination of Phenolic Acids from Dandelion

ACS Omega ◽  
2021 ◽  
Author(s):  
Yongsheng Ji ◽  
Le Wu ◽  
Ruihong Lv ◽  
Haohao Wang ◽  
Shuhui Song ◽  
...  
Keyword(s):  
Cloud Point ◽  
Phenolic Acids ◽  
Cloud Point Extraction

Determination of the Isoflavone Genistein in Soybeans by High-Performance Liquid Chromatography Following Cloud Point Extraction

2012 ◽  
Vol 95 (3) ◽  
pp. 845-849 ◽  
Author(s):  
Mohammad Mirzaei ◽  
Atieh Karimi Naeini ◽  
Mansoureh Behzadi
Keyword(s):  
Cloud Point ◽  
High Performance ◽  
Cloud Point Extraction ◽  
Uv Detector ◽  
Experimental Conditions ◽  
Solid Ratio ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Replicate Measurements

Abstract A simple and sensitive method has been developed for preconcentration and determination of genistein in soybeans. This method is based on cloud point extraction (CPE) of genistein from soybeans using ethylene glycol monoalkyl ether (Genapol X-080) as a nonionic surfactant. The concentration of extracted genistein was determined by HPLC with a UV detector. Optimum experimental conditions were established. With 5% Genapol X-080 (v/v), a liquid/solid ratio of 25:1 mL/g, and ultrasonic-assisted extraction at 40°C for 45 min, the extraction percentage of genistein reached its highest value. The preconcentration factor for genistein was about 16.5. The RSD for seven replicate measurements and the LOD were ±4.45% and 15.0 ng/mL, respectively. CPE is simple, inexpensive, and suitable for extraction of genistein from soybean. It uses environmentally friendly surfactants and offers a convenient alternative to more conventional extraction systems.

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